Edging machine



July 26,1927. 1,637,074

H. J. GAISMAN ET AL EDGING MACHINE Filed March 2 1923 5 Sheets-Sheet lawue'mtoz I I e MA (60W 7 mm 1,637, July 1927' H. J; GAISMAN ET AL 074EDGING MACHINE Filed March 23, 1923 5 Sheets-Sheet 2 nvcntot 35 W cm1,637,074 July 1927' H. J. GAISMAN ET AL EDGING MACHINE Filed March 21923 5 Sheets-Sheet 3 1,637,074 1927' H. J. GA'ISMAN ET AL EDGINGMACHINE I Filed March 23, 1923 5 Sheets-Sheet 4 R Q AQM Jul 26 1927.

y H. J. GAISMAN ET AL EDGING MACHINE Filed March 25, 1925 s Sheets-Sheet5 Patented July 26, 1927 I I UNITED STATES PATENT orr es.

HENRY JJ GAISMAN, OF NEW YORK, AND CONRAD SCHUMACHER, F IiYNNBROOK, NEWYORK, ASSIGNORS TO AUTOSTROP PATENTS CORPORATION, OF DOVER, DELA- WARE,A CORPORATION OF DELAWARE.

EDGIN G MACHINE.

Application filed March 23, 1923-Serial No. 627,093.

Our invention relates to improvements in Upon a suitable support 1 issecured a means for edging metal, such as steel, parbase or frame 2provided with spaced standments, and has especial reference to edgingbearings on said base and is shown provided,

' 5 of razor blades. Aparticular' feature of our with fast and loosepulleys 5 and 6 for roinvention is to provide means to produce a tat-ingsaid shaft. Shaft 4 is shown profine or delicate edge upon suitablemetal, vided with a gear 7 in mesh with a'gear 8 either by grinding,strapping or honing it, secured on a shaft 9, the gear 7 also being orthe same successively. in mesh with an idle gear 10 on a shaft 11 1 Incarrying out our invention we provide spaced from shaft 4, the gear 10being in ticularly for the cutting edges of instruards 3. A shaft 4 isjournaledfin suitable a grinding or stropping medium, which mesh withgear 12 secured upon the shaft 7 may comprise strips of suitableabrading 13. The shaft 9 1S journaled in bearings in material orleather, mounted to be rotated a bracket or arm 14 that is movably suporcarried around bodily with respect to the ported on or concentric withshaft 4 as a 15 cutting edge of the material to be edged and center andextends upwardly therefrom, and alsoto be rotated in an axialm'annerwith shaft 13 isjournaled in bearings upon 'a respect to saidedge so as to operate upon bracket or arm 15 journaled upon or consaidedge with various kinds of contact to centric with shaft 11 andextending upwardprodnce a desired finish on the cutting edge lytherefrom. The brackets or arms 14, 15

of the material, which may be used for are shown located on oppositesides of uprazor blades or other instruments. rights3 and are adjustablyconnected with Our invention also comprises novel desaid upi'ights,.asto a tie bar 3 secured theretails of imgrovement that will be more fullyto, for which purpose we have shown bar set forth hereinafter and thenpointed out 3 provided with a projection. 3 receiving in the claims. apivot pin 16 that passes through the ad- Reference is to be had to theaccompanyjacent ends or eyes of screws 17, 18, the outer ing drawingsforming a part hereof, whereends of which screws pass through openings1I1. in projections 14, 15 of arms'14, 15 respec- Fig. 1 is across-sectional view on line 1, t ively, said screws being secured inset posi- V 1,. of Fig. 2, of a machine embodying our tion by means ofnuts 19 adapted to be adinvention, illustrating the relation of partsjusted against the projection 14, 15, (Fig.-- more or lessdiagrammatically; 3). The arms 14, 15 may be adjusted to- Fig. 2 isapartly sectional side elevation ward and from each other with respect toof the machine; the opposite sides of uprights The shafts Fig. 3-is aplan view partly in section on 9 and 13 respectively carry pairs ofspacedline 3, 3, in Fig. 2 heads or spiders 20, between which are jour-F 1g- 4 1S. d fl nd view par ly 1 naled shafts 21, there being six suchshafts tion on line 4, 4, in Fig. '2; shown supported by each pair ofheads or Fig. 5 is a partly sectional Side eleva i n spiders 20,although any suitable number of 40 of Fig. I such shafts may be providedfor each pair g- 6 154114 n v g y g of heads. The shafts 21 carrystropping or means for axially rotating the grinding or grinding media,which may be of leather or stroppingmedia; other suitable'material,adapted to engage Fig. 7 is a s de view illustrating the drivth tti d af an mid t b mg meai s of Fig. 6; stropped, such as a. strip of steel A,which Fig 8 IS a detail of gui ing means for the may be utilized forsafety razor blades. We material to be stropped; have shown each oftheshafts 21 equi-dis- FlgS- 9 an 1 are Sect/101181 fif P8- tantl'y disosed respecting the axes of the tively on lines 9, 9 and 10, 10 of Fig.8; and correspon ing shafts 9 and 13, the shafts 21 F g. 10 IS across-section of strip-A. being provided with rolls 22, secured to saidSimilar numerals of reference. indicate shafts by ins 23 or in an otherdesired corresponding ,parts in the several views. manner. aid rolls ares own provided with spirally disposed peripheral grooves 2a in which arelocated the media before referred to, such as strips of leather or othersuitable material 25, (Fig. 2), whereby said strips arehelicallydisposed around the rolls 22 and have their outer surfacesexposed to engage the cutting edge a of the strip A. The strips 25 maybe secured in the peripheral recesses 24 of rolls 22 by anysuitablemeans, such as by an adhesive. The strips 25 may be of suitable materialadapted to grind or reduce the edge a by contact therewith, or have agrinding substance applied thereto such as ground emery, in any suitable way, or said strips may be of leather, canvas or the like,relatively smooth on the working surface, to serve for stropping orhoning edge a of strip A. During the rotation of shafts 9 and 13, bymeans of the gearing before described, the rolls 22 are rotated bodilyaround; the axes of their shafts 9, 13, with respect to the strip apassing between them, so that the outer surfaces of the media or strips25 may engage the sides of strip A or its edges a. lit will be observedfrom the drawings that the respective sets of stropping rolls arelocated on opposite sides of the strip .d,, which is guided to travellongitudinally through a guide 26 which may be supported in verticalslots 3' of the standards 3, screws 27 carried by said standards servingto adjust the guide 26 in an upward direction and retain the guide inset position, (Figs. t and 5). lhe guide 26 may be of any suitableconstruction having an upper interior space 26 to receive strip A, (Fig.9). The guide 26 is shown formed in two'pieces of metal secured togetherby screws 29 and provided with longitudinally disposed odset portions 26which oppose and provide the guiding recess 26, (see Figs. 8, 9 and 10).Uentral guiding members 26 are set relatively close together to receivestrip A between them at the portion where the grindingor stropping isperformed, and secured to guide 26, (Figs. 8 and 10).

In the example illustrated in Fig. 1 the rolls 22 at the ri ht hand sideare adapted to be rotated bodily clockwise, in the direction of thearrow 6, and the rolls 22 at the i left in said figure are adapted to berotated row 0, and said rolls on bodily anti-clockwise, in direction ofthe aropposite sides of the machine are shown so disposed as toalternately engage the edge a of strip A as said rolls rotate bodily.Means are also provided to rotate the rolls axially while they are beingbodily rotated around the axes of their respective supporting shafts 9andld, so the stropping media or strips 25 willnot only engage the stripA by reason of their bodily rotation, but also by reason of tlldllttfilal rotation, as in a lanetary manner. For producing the axiarotation of rolls 22 we prothat near/n74 vide said rolls with pulleys30, which may be secured to the respective shafts 21, which pulleys areadapted to engage an endless belt 31v during bodily rotation of saidpulleys with their respective rolls, (Figs. 6 and 7). The endless belt31 passes from a drive pulley 32 over guiding pulleys 33 on oppositesides of the machine, and has-bights or loops 31, 31* above said pulleyswhich re-- spectively enclose some of'the pulleys on opposite sides ofthe machine, said belt at its portion below said bights or loops alsopassing over guide pulleys 34: on opposite sides of the machine (Figs. 3and 7). The pulleys 33, 34 are arranged in pairs and are carried uponshafts or pivots 35 supported by arms 36 projecting outwardly from theframe 2. The belt 31 is driven in the direction of the arrows in- Fig. 6by means of pulley 32, and as the pulleys 30 are rotated bodily aroundthe axes of their shafts 9 and 13 and make contact with the respectivebights of the belt 31 said pulleys are rotated axially respectively inthe direction of the arrows at and e in Fig. 6, that is to say thepulleys and their rolls 22 are rotated axially clockwise on one side ofthe machine, as on the right hand side of Fig. 6, and axiallyanti-clockwise at the left hand side of Fig. 6, whereby the stroppingmedia or strips 25 will be rotated correspondingly in contact with theopposite sides of strip A, in a direction toward the cutting edge of thestrip. By adjusting the arms 14:, 15 toward the cutting edge a of stripA the 'stropping or grinding media or strips 25 not only engage saidedge of strip A with a so-called wiping stroke by reason of their bodilyrotation, -but also with a relatively sliding action against such edgeby reason of their axial r0- tation and their helical or spiral actionagainst said edge.

The pulley 32 may be driven in any suitable way, being illustratedmounted upon a shaft 37 journailed in suitable bearings on the mainframe to be driven in any suitable manner. The belt 5, for the drivepulleys 5 and 6, is adapted to operate on fast and loose pulleys 38, 39"on shaft 37, whereby shafts i and 37 are rotated together.

The strip A may be fed between the respective sets of rolls 22 in anysuitable manner, such as from a reel B on one side of the machine to bepulled by drawing rolls C on the other side of the machine. Our 1m;provements may be incorporated in any desired or well known machineadapted to first grind the edge a of strip A to reduce the cutting edgea to any desired condition before being operated upon by the describedstropping or honing devices, or the grinding may be performed in onemachine and the stropping or finishing in a separate machine.

While we have illustrated sets of rolls 22 on opposite sides of themachine, adapted to V bodily at, one

the medium, the said bodily tions of said rubbing member beingconsuccessively or alternately operate on opposite sides of the edge ofstrip A, it will be understood that where the cutting edge of astrlp isto be gIOllIlCl or stropped only on one side thereof, only one set ofthe rolls 22 need be used to operate on the corresponding side ofthestrip.

From the foregoing description it will be understood that as the strip Aadvances adjacent to the rolls 22 the-latter will be rotated bodily aswell as axially in contact with the edge portion of the strip, and thatthe grinding or stropping media 25 will continue to engage the cuttingstrip with alternate successive touches from the corresponding series ofrolls 22, so that as the strip advances along said I rolls the same partof,

'thestrip willbe successively'engaged by succeeding media 25, whereby avery fine and delicate edge may be produced upon the strip in anaccurate and expeditious ma1iner. The rolls 22 may be used in ourmachine to first grind the strip A for an edge and then strop it, spacedsets of rolls being provided for such purpose, or the rolls may bearranged to grind or to strop only as may be desired.

The finished strip may be divided into shorter lengths for any desiredpurposes, such as for razor blades. Instead of passing a strop throughthe machine for grlnding, stropping or honing its cutting edge a stripof suitable length may be placed in the guide or holder 26 to be groundor stropped while held stationary, to be removed and replaced whenfinished, and so on successively. 1

We term the strip or strips 25 a rubbing medium or media whether adaptedfor grinding or stropping the material or strip A since, as such mediumpasses said material or strip it will engage the same with a rubbingaction. Although we have shown the medium 25 in the form of astripspirally disposed on its roll 22 it will beunderstood that said mediummay be in any other deisired form adapted to engage material whenpassing the same.

Having now described our invention, wha we claim is v 1. An edgingmachine comprising a rubbing medium, means to rotate said medium side ofan article to be edged into and out of contact therewith, and means torotate said medium axially in contact with the article during bodilyrotation of and axial rotatinuous before, with the article.

2. An edging machine comprising a plurality of spaced rubbing media,means to rotate said media bodilv in the same direction atone sideof anarticle to be edged into and out-of,- contact therewith, and meanstoroduring and after contact means to support said rolls for tate eachof said media axially in contact with the article during their bodilyrotation, the said bodily and axial rotations of said and out of contactwith said article, and

means to rotate said rolls axially in contact with the articleduringtheir bodily rotation, the said bodily and axial rotations of saidrubbing media being continuous before, during and after contact with thearticles. a

4:. An edging machine comprising a shift, a plurality of edging rollscarried by said shaft and spaced therefrom, means to rotate Y said shaftto rotate said, rolls bodily therearound, means to rotate said rollsaxially in contact with the article during their bodilyarotation aroundthe axis of the shaft, and means to guide an article atone side of thepath described by the outer surfaces 01f said rolls during their bodilyrotation, t e edging rolls being continuous before, during and aftercontact with the article.

5. An edgingmachine comprising a plurality of spaced edging rollsdisposed substantially concentricall axis, means to rotate said rollsbodily around said axis continuously and successively into and out ofcontact with an article to .be edged, means to rotate said rolls axiallyin directions corresponding to the direction of their bodily rotation,and means to. guide an article at one side of the path described by theouter surfaces of said rolls during their bodily rotation.

6. An edging machine comprising means to guide and feed a strip to beedged, a plu rality of spaced edging rolls pivotally supported on acommon axis on one side of said strip, means to rotate said rolls bodilyon said side of said strip continuously and suc-' cessively into'and outof contact therewith, and means to rotate said rolls axially respectingsaid strip.

edging machine comprising means to guide a strip to be edged, an armmovably supported adjacent to said guiding means, means to adjustablyretain said arm with relation to said guiding means, edging rolls,

bodily rotation with respect to said guiding means, and means to bodilyrotate said rolls.

8. An edging machine comprising means to guide a strip to be edged, anarm movably supported adjacent to said guiding means, means toadjustablyretain said arm with relation to said guiding means, edging rolls, meansto support said rolls for bodily rotasaid bodily and axial rotations ofsaid around a common tion with respect to said guiding means, means tobodilyrotate said rolls, and means to rotate said rolls axially.

9. An edging machine comprising means to guide a strip, arms movablysupported on opposite sides of said guiding means, means to adjustablyretain said arms respecting said guiding means, edging rolls, meanssupporting the edging rolls upon each of the arms in spaced relation toone another, and means to ioodily rotate said rolls.

10., An edging machine comprising means to guide a strip, arms movablysupported on sesame opposite sides of said guiding means, means toadjustably retain said arms respecting said guiding means, edging rolls,means supporting the edging rolls upon each of the arms in spacedrelation to one another, means to bodily rotate said rolls, and means toaxially rotate said rolls.

Signed at New York city, county and State of New York, this 21st day ofMarch, 1923.

HENRY J. GAISMAN. CUNRAD SCHUMACHER.

